updated 09:45 am EDT, Thu August 28, 2014

Ricoh's Pentax K-camera collection has been joined by a new mid-class camera. The Pentax K-S1 is a DSLR with a 20-megapixel CMOS sensor combined with the Prime MII imaging engine, giving it a maximum sensitivity of ISO 51,200, a top shutter speed of 1/6000 of a second, and a continuous shooting rate of up to 5.4 frames per second.

Capable of recording 1080p video at 30, 25, and 24fps in H.264, the K-S1 has 11 autofocus sensors, including nine cross-type sensors, as well as a spot beam to assist with focusing in low-light situations. Accompanying the 100-percent field of view pentaprism viewfinder is a 3-inch 921k-dot LCD screen, while it can also be controlled remotely over Wi-Fi using a mobile app and the optional Flucard.

Unusually, the K-S1 features a large number of LED-equipped parts, which Ricoh claims is to help the user navigate the camera's functions. The power switch LED stays green for still images but changes to red for movie recording. A row of LEDs on the grip are used to show the number of subjects appearing when Face Detection is turned on, and can also act as a countdown indicator for timer-based shots.

The Pentax K-S1 will be offered with 12 color options from September, with the body priced at $750, while the $800 kit adds in an 18-55mm lens.